# What A Fish vs Tidepool Tycoon

The clearest difference is in-app purchases: What A Fish at none against Tidepool Tycoon's 8. What A Fish also leads on iOS requirement (15.0 vs 17.0). Tidepool Tycoon's advantage is update cadence (every 2 weeks vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Tidepool Tycoon sells 8 in-app purchases, starting at $9.99 per month. What A Fish asks for nothing beyond the download.

What A Fish ships an update monthly, Tidepool Tycoon every 2 weeks. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | What A Fish | Tidepool Tycoon |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 133 MB | 18 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [What A Fun LLC](https://appshunter.io/developer/1811705849) | [Tam Tran](https://appshunter.io/developer/6786559953) |

## What reviewers say

### What A Fish

[App page](https://appshunter.io/ios/app/what-a-fish/id6757287470)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tidepool Tycoon

[App page](https://appshunter.io/ios/app/tidepool-tycoon/id6794579137)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tidepool Club | $9.99 | per month |
| Pearl Pack - Small | $0.99 | one-time |
| Castaway Pack | $2.99 | one-time |
| Pearl Pack - Medium | $4.99 | one-time |
| Harbormaster Deed | $6.99 | one-time |
| Pearl Pack - Large | $9.99 | one-time |
| Founder's Chest | $19.99 | one-time |
| Pearl Pack - Huge | $19.99 | one-time |


## Frequently asked questions

### Is What A Fish free?

What A Fish is free to download, with no in-app purchases.

### Is Tidepool Tycoon free?

Tidepool Tycoon is free to download, with in-app purchases available.

### Do What A Fish or Tidepool Tycoon have ads?

Both What A Fish and Tidepool Tycoon show ads.

### Which is updated more often, What A Fish or Tidepool Tycoon?

What A Fish ships an update monthly, and Tidepool Tycoon every 2 weeks. Most recently, What A Fish was updated on October 19, 2026 and Tidepool Tycoon on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*